enters the war in syria appears to be up to the dictator bashar al-assad. on monday, david martin reported orte the assad regime had given orders to prepare chemical weapons for possible use to put down the revolt that has been raging in that country for more than a year and a half. oesident obama said the use of these weapons of mass bestruction would be totally unacceptable. well, tonight, david has new intelligence to report, and we have three stories on the breaking news in syria. we'll start with martin at the pentagon. >> reporter: u.s. intelligence so far has not detected any emgns syria is loading chemical weapons on to aircraft, but defense secretary panetta said it appears the embattled assad regime is preparing to do just that. >> there is no question that we remain very concerned, very thecerned that as the opposition advances, in particular on hemascus, that the regime might very well consider the use of chemical weapons. ing eporter: monitoring of syrian basis like this one has picked up evidence engineers have loaded the chemicals which combi